Re: hdac0: Unexpected unsolicited response from address 0: 00000000

On Wed, 21 Aug 2019 13:23:05 +0200
"Hartmann, O." <ohartmann_at_walstatt.org> wrote:

> Hello list,
> 
> on a Lenovo E540 I get this weird error since I used 12-STABLE/CURRENT
> on this specific notebook. I guess it has a Optimus Intel iGPU/nVidia
> NV940 GPU system and usable is only the iGPU with port
> graphics/drm-fbsd12.0-kmod.
> 
> The notebook doesn't have audio anymore, nor can I use vlc, mplayer or
> smplayer anymore, the applications are stuck as they are waiting for
> the audio which never comes up. The same in Firefox (recent versions),
> videos, i.e. via youtube, never played since a while now.
> 
> I can't say when this problem first occured, it is now for a while,
> say 6 or 8 months so. I receive massive kernel messages on the
> console like
> 
> [...]
> hdac0: Unexpected unsolicited response from address 0: 00000000
> hdac0: Unexpected unsolicited response from address 0: 00000000
> hdac0: Unexpected unsolicited response from address 0: 00000000
> [...]
> 
> What is wrong here?
> 
> Thanks,
> 
> oh
> 
> The dmesg shows:
> 
> ---<<BOOT>>---
> Copyright (c) 1992-2019 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993,
> 1994 The Regents of the University of California. All rights
> reserved.
> FreeBSD is a registered trademark of The FreeBSD Foundation.
> FreeBSD 12.0-STABLE #61 r351164: Sat Aug 17 08:37:38 CEST 2019
>     root_at_toedd:/usr/obj/usr/src/amd64.amd64/sys/TOEDD amd64
> FreeBSD clang version 8.0.1 (tags/RELEASE_801/final 366581) (based on
> LLVM 8.0.1)
> VT(efifb): resolution 1920x1080
> module zfsctrl already present!
> module_register: cannot register tmpfs from kernel; already loaded
> from tmpfs.ko
> Module tmpfs failed to register: 17
> CPU: Intel(R) Core(TM) i5-4200M CPU _at_ 2.50GHz (2494.28-MHz K8-class
> CPU) Origin="GenuineIntel"  Id=0x306c3  Family=0x6  Model=0x3c
> Stepping=3
> Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
> Features2=0x7fdafbbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,SDBG,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
> AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD
> Features2=0x21<LAHF,ABM> Structured Extended
> Features=0x27ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,NFPUSG>
>   Structured Extended Features3=0x9c000000<IBPB,STIBP,L1DFL,SSBD>
>   XSAVE Features=0x1<XSAVEOPT>
>   VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID
>   TSC: P-state invariant, performance statistics
> real memory  = 17179869184 (16384 MB)
> avail memory = 16439214080 (15677 MB)
> Event timer "LAPIC" quality 600
> ACPI APIC Table: <LENOVO TP-J9   >
> FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
> FreeBSD/SMP: 1 package(s) x 2 core(s) x 2 hardware threads
> random: unblocking device.
> Security policy loaded: MAC/ntpd (mac_ntpd)
> ioapic0 <Version 2.0> irqs 0-23 on motherboard
> Launching APs: 1 3 2
> Timecounter "TSC-low" frequency 1247140210 Hz quality 1000
> random: entropy device external interface
> kbd1 at kbdmux0
> module_register_init: MOD_LOAD (vesa, 0xffffffff80d41390, 0) error 19
> [...]
> 
> 
> [...]
> dmesg|grep hda
> hdac0: <Intel Haswell HDA Controller> mem 0xf1610000-0xf1613fff at
> device 3.0 on pci0 hdac1: <Intel Lynx Point HDA Controller> mem
> 0xf1614000-0xf1617fff at device 27.0 on pci0 hdacc0: <Intel Haswell
> HDA
> CODEC> at cad 0 on hdac0 hdaa0: <Intel Haswell Audio Function Group>
> CODEC> at nid 1 on hdacc0  
> pcm0: <Intel Haswell (HDMI/DP 8ch)> at nid 3 on hdaa0
> hdacc1: <Conexant CX20751/2 HDA CODEC> at cad 0 on hdac1
> hdaa1: <Conexant CX20751/2 Audio Function Group> at nid 1 on hdacc1
> pcm1: <Conexant CX20751/2 (Internal Analog Speaker)> at nid 23 on
> hdaa1 pcm2: <Conexant CX20751/2 (Right Analog Headphones)> at nid 22
> on hdaa1 hdac0: Unexpected unsolicited response from address 0:
> 00000000 hdac0: Unexpected unsolicited response from address 0:
> 00000000 hdac0: Unexpected unsolicited response from address 0:
> 00000000 hdac0: Unexpected unsolicited response from address 0:
> 00000000

I see that on my Talos, with my Radeon card, when the PCI bus is reset.
 In my case, it causes a panic, too.

- Justin